Hi,
I would like to ask some questions about available frequences for AMD Sempron 3300+ processor.
In Linux, the minimum frequency is 800MHz, in Windows XP it is 500MHz.
Also the freq. step is different - Windows XP supports 500, 1000, 1500 and 2000MHz.
Why there are these differences on the same HW?
I would like to change the powernow_k8 module to support 500Mhz, so that my system could be cooler and more quiet.
Is it possible to change it that way?
Can my changes damage the CPU?
linux (2.6.31) dmesg output:
powernow-k8: Found 1 Mobile AMD Sempron(tm) Processor 3300+ processors (1 cpu cores) (version 2.20.00)
powernow-k8: 0 : fid 0xc (2000 MHz), vid 0xe
powernow-k8: 1 : fid 0xa (1800 MHz), vid 0x10
powernow-k8: 2 : fid 0x8 (1600 MHz), vid 0x12
powernow-k8: 3 : fid 0x0 (800 MHz), vid 0x13
cpufreq-info:
cpufrequtils 003: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to cpufreq@xxxxxxxxxxxxxxxxxx, please.
analyzing CPU 0:
driver: powernow-k8
CPUs which need to switch frequency at the same time: 0
hardware limits: 800 MHz - 2.00 GHz
available frequency steps: 2.00 GHz, 1.80 GHz, 1.60 GHz, 800 MHz
available cpufreq governors: powersave, ondemand, userspace, conservative, performance
current policy: frequency should be within 800 MHz and 2.00 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 800 MHz (asserted by call to hardware).
Thanks a lot (for any information).
Milan
--
To unsubscribe from this list: send the line "unsubscribe cpufreq" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
